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Impedance patents



      
           
This page is updated frequently with new Impedance-related patent applications. Subscribe to the Impedance RSS feed to automatically get the update: related Impedance RSS feeds. RSS updates for this page: Impedance RSS RSS


Automated cell patch clamping method and apparatus

Cardiac electrosurgery

Date/App# patent app List of recent Impedance-related patents
08/14/14
20140229130
 State of charge detection device patent thumbnailState of charge detection device
The present invention pertains to the detection of the state of charge of a battery, whereby the complex impedance in the diffusion region of the battery is used. An arithmetic device such as a computer determines the slope of the complex impedance at least two different frequencies in the diffusion region of a rechargeable battery when a straight-line approximation has been made.
08/14/14
20140229019
 Climate control system patent thumbnailClimate control system
The invention relates to an improved climate control system in which a climate controlling equipment (1) has a control line (2) arranged to be connected to climate influenced impedance means (3). According to the invention, relay means (4) are arranged to disconnect the climate influenced impedance means from the control line under influence from an output (5) of a control unit (6) and to instead connect substituting means (7) providing an impedance controlled by a second output (8) of the control unit.
08/14/14
20140228857
 Automated cell patch clamping method and apparatus patent thumbnailAutomated cell patch clamping method and apparatus
In an automated method for in vivo multiple cell patch clamping, cell patch clamping devices are automatically moved into position and targeted to multiple corresponding cells. Cell contact is determined by analyzing the temporal series of measured resistance levels at the clamping devices as they are moved.
08/14/14
20140228841
 Cardiac electrosurgery patent thumbnailCardiac electrosurgery
Devices and methods are disclosed for providing access to the pericardial cavity while reducing risk of myocardial damage. One method includes advancing a puncture device towards a heart, the puncture device including an energy delivery device; measuring an electrical impedance at the energy delivery device; delivering energy from the energy delivery device to at least partially puncture a pericardium; and repeating one or more of the above steps, if necessary, until the energy delivery device is located at least partially within the pericardial cavity.
08/14/14
20140228672
 Mode splitter/combiner for noise figure minimization and control of power in rf coil arrays patent thumbnailMode splitter/combiner for noise figure minimization and control of power in rf coil arrays
A magnetic resonance (mr) system (10) minimizes noise for modes of an array of coils (261, 262, . .
08/14/14
20140228666
 Unit, modular system and method for measuring, processing and remotely monitoring electrical bioimpedance patent thumbnailUnit, modular system and method for measuring, processing and remotely monitoring electrical bioimpedance
The bioimpedance data can be transmitted over the internet or a gsm network from the external unit (30) to a remote unit for remote monitoring.. .
08/14/14
20140227981
 Methods and apparatus for performing impedance matching patent thumbnailMethods and apparatus for performing impedance matching
A system that incorporates teachings of the subject disclosure may include, for example, determining a first voltage standing wave ratio (vswr), selecting a vswr circle from among a group of vswr circles based on the first vswr, identifying a group of sets of tuning settings for variable reactance elements of a matching network of the communication device where the identifying of the group of sets of tuning settings is based on each set of tuning settings of the group of sets of tuning settings being associated with the vswr circle, and selecting a set of tuning settings from among the group of sets of tuning settings responsive to a second vswr determined for the set of tuning settings satisfying a vswr threshold. Other embodiments are disclosed..
08/14/14
20140227905
 Device and method for impedance matching microwave coaxial line discontinuities patent thumbnailDevice and method for impedance matching microwave coaxial line discontinuities
A coaxial connector has an inner connector. An outer connector is positioned in concentric and radially spaced in relation to the cylindrical inner connector.
08/14/14
20140227562
 Lithium secondary-battery pack, electronic device using same, charging system, and charging method patent thumbnailLithium secondary-battery pack, electronic device using same, charging system, and charging method
A lithium secondary-battery pack of the present invention includes: a lithium secondary battery including an electrode body and a non-aqueous electrolyte, the electrode body including a positive electrode and a negative electrode facing each other, and a separator interposed therebetween; a ptc (positive temperature coefficient) element; and a protection circuit including a field-effect transistor, wherein the negative electrode includes a negative electrode material mixture layer containing a si-containing material as a negative electrode active material, and, where z represents an impedance (Ω) of the lithium secondary-battery pack and q represents a capacity (ah) of the lithium secondary-battery pack, an impedance capacity index represented by z/q is 0.055 Ω/ah or less.. .
08/14/14
20140227464
 Multiple anode plasma for cvd in a hollow article patent thumbnailMultiple anode plasma for cvd in a hollow article
A method and apparatus for plasma enhanced chemical vapor deposition to an interior region of a hollow, tubular, high aspect ratio workpiece are disclosed. A plurality of anodes are disposed in axially spaced apart arrangement, to the interior of the workpiece.
08/14/14
20140226753
Method and system for mitigating transformer saturation in a communication interface
A method and system for mitigating transformer saturation in a communication interface is provided. The method may include detecting a change in impedance resulting from transformer saturation of at least one isolation transformer utilized in a network path of a network.
08/14/14
20140226378
Transmission-line resistance compression networks and related techniques
A resistance compression network uses transmission line sections having asymmetric lengths to compress the resistance range of multiple loads. In some embodiments, the characteristic impedance of the transmission line sections is related to the geometric mean of the load resistance range.
08/14/14
20140226252
Igniting combustible mixtures
The disclosure relates methods and related systems for controlling corona discharge in a combustion chamber without causing an arc strike. The methods can include measuring a baseline impedance of a circuit in electrical communication with an electrode, measuring an actual impedance of the circuit, determining an impedance setpoint based at least in part on the baseline impedance, comparing the actual impedance to the impedance setpoint, and adjusting the actual impedance based at least in part on the comparison between the actual impedance and the impedance setpoint.
08/14/14
20140225807
Mountable antenna elements for dual band antenna
A mountable antenna element is constructed as an object from a single piece of material and can be configured to transmit and receive rf signals, achieve optimized impedance values, and operate in a concurrent dual-band system. The mountable antenna element may have one or more legs, an rf signal feed, and one or impedance matching elements.
08/14/14
20140225803
Radio system for high-speed wireless communication
Indoor/outdoor broadband wireless combined radio/antennas configured to include an integrated adjustable mount allowing mounting to a pole or stand and adjustment of the angle of the device (e.g., the altitude) by a lockable ball joint. The device may include a compact array antenna having a high gain configured to operate in, for example, the 5.15 to 5.85 ghz band and/or the 2.40-2.48 ghz band.
08/14/14
20140225782
Stacked array antennas for high-speed wireless communication
Array antennas for wireless transmission having an array of emitters/receivers that are compactly arranged above an antenna feed and ground plate. These high gain devices may be configured to operate in any appropriate band, such as the 5.15 to 5.85 ghz band and/or the 2.40-2.48 ghz band.
08/14/14
20140225682
Acoustic resonator having temperature compensation
An acoustic resonator structure comprises a substrate having an air cavity, an acoustic stack disposed over the substrate and comprising a piezoelectric material disposed between a first electrode and a second electrode, and an acoustic reflector disposed over the substrate and comprising a single pair of acoustic impedance layers configured to reflect acoustic waves produced by vibration of the acoustic stack, wherein at least one of the acoustic impedance layers comprises a temperature compensating material.. .
08/14/14
20140225679
Power combiner/divider
A power combiner/divider w1 which includes: a body portion in which a cavity is formed; a center coaxial connector which is formed on an approximately center portion of the body portion; a plurality of peripheral coaxial connectors 14 which are arranged concentrically about the center coaxial connector 11 and are formed on the body portion; a radial line which is formed in the cavity formed in the body portion; a center coaxial line which has one end thereof connected to the center coaxial connector and the other end thereof connected to a center portion of the radial line; and a peripheral coaxial line which has one end thereof connected to the peripheral coaxial connector and the other end thereof connected to an outer peripheral portion of the radial line, an impedance conversion part is provided to the radial line in one or plural stages.. .
08/14/14
20140225671
High efficiency power amplifier
A high efficiency power amplifier of the present invention includes a transistor and an output power processing circuit section. The output power processing circuit section includes an output matching circuit section and an output harmonic processing circuit section.
08/14/14
20140225663
Buffer circuit and switching controller
A buffer circuit includes a first inverter circuit that inverts an input signal, a second inverter circuit that inverts the output signal of the first inverter circuit, an impedance element connected between the first inverter circuit and the second inverter circuit, a first conductivity type switching element that increases a potential of the output node of the second inverter circuit when the input signal exceeds a first threshold voltage, and a second conductivity type switching element that decreases a potential of the output node of the second inverter circuit when the input signal is lower than a second threshold voltage.. .
08/14/14
20140225640
Semiconductor device and method of adjusting characteristic thereof
To suppress the number of clocks needed to adjust the impedance of an output buffer. A pull-up replica buffer is connected between a calibration terminal and power supply wiring, and is controlled in impedance by a drzqp signal supplied from a counter.
08/14/14
20140225532
Method of operating switch mode power converters, and controllers and lighting systems using such a method
A method is disclosed of operating a controller for a switch mode power converter and having connection pins, the method comprising a mode-setting phase and an operational phase and comprising: in the mode-setting phase: polling connection pins to sense the presence and/or magnitude of a respective relatively high impedance connected between a respective connection pin and a predetermined electrical potential, and/or other connection pins to sense the presence and/or magnitude of a respective further impedance connected between the respective connection pin and a predetermined electrical potential, and selecting an operational mode from a plurality of possible operational modes; and in the operational phase: operating in the selected operational mode, comprising providing a respective drive signal having a relatively low output impedance from each of the first group of connection pins; and measuring a sense voltage on each of the second group of connection pins.. .
08/14/14
20140225521
Systems, methods, and apparatuses for using a high current switching device as a logic level sensor
A line voltage signal at a first voltage and a first current supplied by a line voltage switching device responsive to a sensed or detected event can be provided to a first node of a regulator. A portion of the line voltage signal can be passed at the first voltage through a capacitive device in the regulator and provided at a second node for return to an electrical circuit containing a load device.
08/14/14
20140225520
Solid-state lighting apparatus for use with florescent ballasts
A lighting apparatus includes a solid-state lighting circuit, at least one ballast connection port and at least one low-frequency blocking impedance coupling the at least one ballast connection port to the solid-state lighting circuit. In some embodiments, the at least one low-frequency blocking impedance may be configured to block a dc offset.
08/14/14
20140225457
Methods for anti-islanding in distributed-source electrical power generation and distribution systems and electrical systems and apparatus using same
A method of detecting an interruption of grid electrical power at an output of an inverter power train coupled to an electrical grid includes generating a reference waveform representing a power train output current waveform with a current control loop. An out-of-phase control signal is generated, which is synchronized and out-of-phase with a grid voltage waveform, with a voltage control loop coupled to the output of the inverter power train, the voltage control loop having a gain proportional to an inverter power train load impedance.
08/14/14
20140225452
Device and system for power transmission
A device for power transmission includes a power transmission section and a detection section. The power transmission section is configured to transmit an electric power wirelessly.
08/14/14
20140225440
Method for reducing common mode current
A method for reducing the common mode current (i) circulating between the internal ground (13) of an electrical circuit (4) and the earth when electrical energy is exchanged between an electrical energy storage unit of the electrical circuit (4) and an electrical energy source external to said circuit (4), in which method an electronic component (21) is used to apply an electrical quantity (vs, is) at a point (26) connected via at least one impedance (28) to an electrical line (5) of said circuit (4) via which electrical energy is exchanged, said electrical quantity (vs, is) applied making it possible to reduce the common mode current (i).. .
08/14/14
20140224963
Low impedance interface circuit to maximize bandwidth and provide bias control
A multichannel application specific integrated circuit (asic) for interfacing with an array of photodetectors in a positron emission tomography (pet) imaging system includes a front end circuit configured to be coupled to the photodetectors and to receive discrete analog signals therefrom. The asic further includes a time discriminating circuit operably coupled to the front end circuit and configured to generate a hit signal based on a combination of the discrete analog signals, and an energy discriminating circuit operably coupled to the front end circuit and configured to generate a summed energy output signal based on each of the discrete analog signals and summed row and column output signals based on each of the discrete analog signals.
08/14/14
20140223997
Gas sensors and methods of preparation thereof
Embodiments of the present disclosure include sensors, arrays of conductometric sensors, devices including conductometric sensors, methods of making conductometric sensors, methods of using conductometric gas sensors, and the like. One exemplary embodiment of a device, among others, includes: a conductometric gas sensor including a n-type substrate having a porous layer, wherein a plurality of ‘nanostructures are disposed on a portion of the porous layer, wherein the nanostructure provides a fractional coverage on the porous layer, wherein the conductometric gas sensor is operative to transduce the presence of a gas into an impedance change, wherein the impedance change correlates to the gas concentration..
08/07/14
20140223401
High-frequency vlsi interconnect and intentional inductor impedance extraction in the presence of a multi-layer conductive substrate
Embodiments of methods, apparatus, and systems for extracting impedance for a circuit design are disclosed herein. Some of the disclosed embodiments are computationally efficient and can accurately compute the frequency-dependent impedance of vlsi interconnects and/or intentional inductors in the presence of multi-layer conductive substrates.
08/07/14
20140222110
Implantable medical device, medical system and method for data communication
An implantable medical device including a data communication device that includes a device to alter and/or generate an oscillatory electric field imposed on body tissue surrounding the implantable medical device when the implantable medical device is in its implanted state. The device that alters an oscillatory electric field modulates an impedance of body tissue surrounding the implantable medical device when the implantable medical device is in its implanted state and within an oscillatory electric field.
08/07/14
20140222109
Implantable medical device, medical system and method for data communication
An implantable medical device including a data communication device that includes a device that alters an oscillatory electric field imposed on body tissue surrounding the implantable device. The device that alters an oscillatory electric field modulates an impedance of a conductive medium surrounding the implantable device when the implantable device is within an oscillatory electric field.
08/07/14
20140222003
Precision bone drill and method of use
Disclosed is a drilling device and a method for the drilling of human or animal bone tissue. The method comprises the following steps; (a) providing a drill having an electrically conductive bone cutter and an electrically conducting nosepiece assembly spaced apart from the electrically conductive bone cutter and acting as a counter electrode; (b) placing the electrically conductive bone cutter and nosepiece assembly into contact with the bone tissue to be drilled; (c) measuring the electrical impedance between the bone cutter tip and the nosepiece or the current through the cutter motor; (d) commencing drilling and moving the bone cutter toward the bone surface; (e) starting a step counter when the impedance reduces or the cutter motor current increases; (f) incrementing the step counter with every step of the vertical drive motor until the step count reaches the prespecified value thereby controlling the depth of the hole drilled..
08/07/14
20140221865
Electric impedance tomography device and method
An electric impedance tomography device with chest electrodes, a display and a control and analyzing unit to determine a time series of a global ventilation curve from the sequence of reconstructed matrices as a time series of the mean impedance change or of a measured respiration volume, to divide an inspiration or expiration phase into a number of steps of equal volume change, to determine the times corresponding to these steps, to determine the change in local impedance between these times for each image element, the ratio of this local change in impedance to the global equal volume change to form a local sequence of relative impedance changes of the image element as a function of the steps of equal volume change, to determine a scalar indicator characteristic as a function of the steps of equal volume change and to display each image element based on the respective scalar indicator.. .
08/07/14
20140221864
Electric impedance tomography device and method
An eit device with a plurality of electrodes, which can be arranged about the chest of a patient, with a control and analyzing unit for feeding electrode pairs of a set of electrodes to record a voltage or current signal as a measured signal with electrode pairs acting consecutively as the feeding electrode pair to provide a matrix of image elements. A time series of the impedance change from the sequence of reconstructed matrices over at least one breath is obtained and compared to a determined time series of the mean impedance change or a time series of a measured respiration volume, by calculating for each image element a scalar value as an indicator of a deviation.
08/07/14
20140221853
Implantable cardiac device with dyspnea measurement
Cardiac monitoring and/or stimulation methods and systems employing dyspnea measurement. An implantable cardiac device may sense transthoracic impedance and determine a patient activity level.
08/07/14
20140221841
Ultrasound probe, ultrasound diagnostic imaging apparatus and manufacturing method of ultrasound probe
Disclosed is an ultrasound probe which outputs ultrasound on a basis of a drive signal which is to be received. The ultrasound probe including a composite piezoelectric layer in which a piezoelectric material and a polymer material are arranged alternately in a one-dimensional array or in a two-dimensional array, an acoustic reflection layer which has an acoustic impedance higher than an acoustic impedance of the composite piezoelectric layer and an adhesion layer which bonds the composite piezoelectric layer and the acoustic reflection layer wherein in a bonding surface of the composite piezoelectric layer that bonds with the acoustic reflection layer, a polymer material part is concaved in a direction opposite to an acoustic reflection layer side comparing to an piezoelectric material part..
08/07/14
20140221808
Cover sheet for a body measuring apparatus and an automatic sheet dispenser therfor
A cover sheet (1) used in a body measuring apparatus having electrodes for supplying current to a human body or for measuring a difference in electrical potential between two sites of the body. The cover sheet has electric conductive area portions (2) corresponding to the electrodes of the body measuring apparatus and having a electric conductivity in thickness direction, and insulation area portions (3) spacing adjacent electric conductive area portions (2) and having electrically insulating property at least along a plane direction.
08/07/14
20140221806
Electric impedance tomography device and method
An eit device with a plurality of electrodes, which can be arranged about the chest of a patient, with a control and analyzing unit for feeding electrode pairs of a set of electrodes to record a voltage or current signal as a measured signal with electrode pairs acting consecutively as the feeding electrode pair to provide a matrix of image elements. A time series of the impedance change from the sequence of reconstructed matrices over at least one inspiration and one expiration is obtained and compared to a determined time series of the mean impedance change or a time series of a measured respiration volume, by calculating for each image element a scalar value as an indicator of a deviation.
08/07/14
20140221777
Laser-assisted surgical procedure to restore sensor neural hearing lost
The present application is directed towards method and systems for determining appropriate morphology changes of an eardrum to restore sensor neural hearing. The methods include receiving a measurement of an audibility threshold, a map of a surface area of an eardrum of the patient, and an impedance of the eardrum of the patient.
08/07/14
20140220922
Signal processing circuit with circuit induced noise cancellation
A signal processing circuit with noise cancellation includes an impedance matching unit and a transconductance stage. The impedance matching unit is disposed at a first path, and arranged to provide input impedance matching, wherein the impedance matching unit is a passive element, and the first path is coupled between a signal input port and a signal output port.
08/07/14
20140220911
Dedicated shunt switch with improved ground
Antenna tuning switch circuitry includes an input port, a shunt switch, control circuitry, and an integrated ground. The shunt switch is coupled between the input port and the integrated ground.
08/07/14
20140220703
High-flux chemical sensors
The present invention relates to the field of chemical detection. Specifically, the invention provides devices that respond quickly to various target chemical analytes present in the environment.
08/07/14
20140220470
Fuel cell system
A fuel cell system including a fuel cell that receives a supply of an anode gas and a cathode gas and generates power is provided. The fuel cell system includes a water content calculation unit configured to calculate a water content of the fuel cell, an internal impedance calculation unit configured to calculate an internal impedance of the fuel cell, and a starting temperature calculation unit configured to calculate a fuel cell temperature at a start of the system, based on the water content of the fuel cell as of a last time the system was stopped, and the internal impedance of the fuel cell at the start of the system..
08/07/14
20140219682
Charging roller
Where ze is the impedance of the resistive elastic layer, and zs is the impedance of the surface layer.. .
08/07/14
20140219680
Image forming apparatus
An image forming apparatus includes a charging roller including elastic and surface layers and a photoconductor drum. Initially, the surface layer has a surface roughness rz of 3-6 μm, and the layers have an impedance ratio of 0.81 or less in absolute value at a frequency of 800-3000 hz.
08/07/14
20140219480
Phase-unified loudspeakers: parallel crossovers
Complimentary crossovers that reduce phase distortion in loudspeaker systems, typically pairs, are described. In the fundamental embodiment, each loudspeaker possesses two drivers, a woofer and a tweeter.
08/07/14
20140219463
Apparatus, systems and methods for inaudibly identifying an audio accessory using spectral shaping
A method for identifying an accessory coupled to an electronic device. The method includes applying at least one detection pulse to the audio accessory, each detection pulse being spectrally shaped to be generally inaudible to a human user, receiving at least one response signal corresponding to each detection pulse that is indicative of the impedance of the accessory, and based on the impedance, identifying the accessory..
08/07/14
20140219315
Cantilevered probe detector with piezoelectric element
A disclosed chemical detection system for detecting a target material, such as an explosive material, can include a cantilevered probe, a probe heater coupled to the cantilevered probe, and a piezoelectric element disposed on the cantilevered probe. The piezoelectric element can be configured as a detector and/or an actuator.
08/07/14
20140218830
Over-limit electrical condition protection circuits for integrated circuits
Protection circuits and methods for protecting an integrated circuit against an over-limit electrical condition are provided. One example includes a snapback circuit having at least a portion formed in an isolated doped well region and configured to switch to a low impedance state in response to an input exceeding a trigger condition and further having a control circuit coupled to a reference voltage and further coupled to the isolated doped well region and the portion of the snapback circuit formed in the doped well region.
08/07/14
20140218127
High-frequency module
A high-frequency module includes a multilayer substrate, a switch ic, a saw duplexer and a matching circuit. The matching circuit includes a wiring line and first and second inner layer ground electrodes.
08/07/14
20140218112
Compensation circuitry and method for amplifiers driving large capacitive loads
An operational amplifier (10) capable of driving a capacitive load (cload) and/or a resistive load (rload) includes a first gain stage (2) having an output coupled to a high impedance node (3) and a second gain stage (5) having an input coupled to the first high impedance node. A gain reduction resistor (rd) and an ac coupling capacitor (cd) are coupled in series between the high impedance node and a reference voltage.
08/07/14
20140218105
Amplifier and amplifying method
An amplifier includes: an amplifying device configured to amplify an input signal; and a matching circuit coupled to the amplifying device, and including an impedance transformer and a parallel resonance circuit coupled to a wiring which spans from the impedance transformer to the amplifying device, wherein a circuit length of the impedance transformer is longer than one-fourth of wavelength of an electronic wave having a frequency which is substantially equal to a resonance frequency of the parallel resonance circuit.. .
08/07/14
20140218097
System and method for a driver circuit
In accordance with an embodiment, a method of operating a gate driving circuit includes monitoring a signal integrity at an output of the gate driving circuit. If the signal integrity is poor based on the monitoring, output of the gate driving circuit is placed in a high impedance state and an external signal integrity failure signal is asserted..
08/07/14
20140218071
Low power tunable reference current generator
An improved reference current generator for use in an integrated circuit. A voltage difference generator generates two voltages that are separated by a relatively small electrical potential.
08/07/14
20140218064
Smu rf transistor stability arrangement
An rf testing method and system by which a dc measurement pathway can also act like a properly terminated rf pathway. Achieving this requires that the output hi, lo, and sense hi conductors are terminated in a frequency selective manner such that the terminations do not affect the smu dc measurements.
08/07/14
20140218042
Battery state detection device
This device and method use the complex impedance of a rechargeable battery to detect the state of the rechargeable battery. A computer determines the slope of the complex impedance at least two different frequencies in a diffusion region of the rechargeable battery when a straight-line approximation has been made, and compares the slope with a threshold value.
08/07/14
20140217885
Pulsed depressed collector
A high power rf device has an electron beam cavity, a modulator, and a circuit for feed-forward energy recovery from a multi-stage depressed collector to the modulator. The electron beam cavity include a cathode, an anode, and the multi-stage depressed collector, and the modulator is configured to provide pulses to the cathode.
08/07/14
20140217245
Remote manipulator for manipulating live multiple sub-conductors in a single phase bundle
A manipulator for separating sub-conductors in an energized single phase bundle includes a rigid support member and first and second actuators mounted on the support member, wherein each actuator is independently actuable of the other. Insulators are mounted on each actuator.
08/07/14
20140216922
Rf delivery system with dual matching networks with capacitive tuning and power switching
Apparatus and method for delivering power to a substrate processing chamber may include a target and a substrate support pedestal disposed in the chamber, a pedestal impedance match device coupled between the substrate support pedestal and ground, wherein the pedestal impedance match device is configured to adjust a bias voltage on the substrate support pedestal, a target impedance match device coupled between the target and ground, wherein the target impedance match device is configured to adjust a bias voltage on the target, a switch electrically coupled to the pedestal impedance match device and the target impedance match device, a first rf power source coupled to the switch, wherein the switch is configured to direct high frequency voltage from the first rf power source to either the target or the substrate support pedestal, and a second rf power source coupled to the substrate support pedestal.. .
08/07/14
20140216845
Thermal-acoustic sections for an aircraft
Embodiments of thermal-acoustic sections for an aircraft for reducing noise along an acoustic path produced from an acoustic source are provided herein. The thermal-acoustic section comprises a first porous layer having a first characteristic acoustic impedance.
07/31/14
20140214395
Segmenting a model within a plasma system
Systems and methods for segmenting an impedance matching model are described. One of the methods includes receiving the impedance matching model.
07/31/14
20140214351
Using modeling to determine ion energy associated with a plasma system
Systems and methods for determining ion energy are described. One of the methods includes detecting output of a generator to identify a generator output complex voltage and current (v&i).
07/31/14
20140214350
Using modeling to determine wafer bias associated with a plasma system
Systems and methods for determining wafer bias are described. One of the methods includes detecting output of a generator to identify a generator output complex voltage and current (v&i).
07/31/14
20140214134
Closed loop chronic electroacupuncture system using changes in body temperature or impedance
A closed loop electroacupuncture (ea) system monitors any change in sympathetic drive within the body of a patient undergoing ea stimulation. The sensed change in sympathetic drive is then used to adjust at least one parameter of the ea stimulation regimen in an appropriate manner that assists regulation of the patient's autonomic nervous system (ans).
07/31/14
20140214133
Radial feed through packaging for an implantable electroacupuncture device
An implantable electroacupuncture device (iead) treats a disease or medical condition of a patient through application of stimulation pulses applied at a specified acupoint or other target tissue location. In a preferred implementation, the iead is an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214129
Energy efficient neuromodulation
A therapy system for applying an electrical signal to a target nerve includes an electrode, an implantable component and an external component. The electrode has an impedance of at least about 2000 ohms.
07/31/14
20140214128
Circuits and methods for using a high impedance, thin, coin-cell type battery in an implantable electroacupuncture device
An implantable electroacupuncture device (iead) treats a disease or medical condition of a patient through application of stimulation pulses applied at a specified acupoint or other target tissue location. In a preferred implementation, the iead is an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214127
Implantable electroacupuncture device and method for treating dyslipidemia
An implantable electroacupuncture device (iead) treats dyslipidemia conditions of a patient through application of stimulation pulses applied at acupoint st40, or its underlying nerves saphenous and peroneal. The iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214126
Implantable electroacupuncture device and method for treating obesity
An implantable electroacupuncture device (iead) treats obese conditions of a patient through application of stimulation pulses applied at acupoints sp4, lr8 or st40, or their underlying nerves saphenous and peroneal. The iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214124
Implantable electroacupuncture system and method for treating cardiovascular disease
An implantable electroacupuncture device (iead) treats cardiovascular disease through application of stimulation pulses applied at at least one of acupoints ex-hn1, bl14, ht7, ht5, pc6, st36, li11, lu7 and lu2. The iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214118
Implantable electroacupuncture system and method for treating depression and similar mental conditions
An implantable electroacupuncture device (iead) treats mental illness through application of stimulation pulses applied at a specified tissue location, including at least one of acupoints gv20 and exhn3, or their underlying nerves. In one embodiment, the iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214117
Implantable electroacupuncture device and method for treating depression, bipolar disorder and anxiety
An implantable electroacupuncture device (iead) treats depression, bipolar disorder or anxiety through application of stimulation pulses applied at acupoints gv20 and/or exhn3. The iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214115
Implantable electroacupuncture system and method for reducing hypertension
An implantable electroacupuncture device (iead) treats hypertension through application of stimulation pulses applied at at least one of acupoints pc5, pc6, li4, st36, st37, li11, lr3, and gb34. The iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214114
Implantable electroacupuncture device and method for reducing hypertension
An implantable electroacupuncture device (iead) treats hypertension through application of stimulation pulses applied at at least one of acupoints pc5, pc6, st36, or st37. The iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214113
Implantable electroacupuncture device
An implantable electroacupuncture device (iead) treats a medical condition of a patient through application of electroacupuncture (ea) stimulation pulses applied at a target tissue location, such as an acupoint. The iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214112
Implantable electroacupuncture device and method for treating erectile dysfunction
An implantable electroacupuncture device (iead) treats an erectile dysfunction condition of a patient through application of stimulation pulses applied at a target tissue location underlying, or in the vicinity of, at least one of acupoints bl52, bl23 or gv4. The iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214111
Implantable electroacupuncture device and method for treating cardiovascular disease
An implantable electroacupuncture device (iead) treats heart failure, coronary artery disease, myocardial ischemia or angina through application of stimulation pulses applied at acupoints gv20 and/or exhn3. The iead comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing.
07/31/14
20140214110
Systems and methods to monitor and treat heart failure conditions
An implantable device monitors and treats heart failure, pulmonary edema, and hemodynamic conditions and in some cases applies therapy. In one implementation, the implantable device applies a high-frequency multi-phasic pulse waveform over multiple-vectors through tissue.


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This listing is a sample listing of patent applications related to Impedance for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Impedance with additional patents listed. Browse our RSS directory or Search for other possible listings.
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